Electro-plating method and apparatus using a cathode having a plurality of contacts
US6406610B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 15, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Mar 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18288
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Electro-plating apparatus 1 has an electro-plating bath 2 containing electrolyte 3, an anode configuration immersed in electrolyte 3 being a planar anode 4 and an arcuate solid anode 5. In use, a continuous web of flexible substrate 6 (onto both side of which material is to be deposited) is passed along a transport system 7 in a direction shown by arrow A. Transport system 7 comprises a set of rollers 8, 9 of which rollers 8 are generally cylindrical, driving rollers while rollers 9 are cathode connectors and have a number of circumferential projections 10 which ensure electrical contact with unconnected or discreet regions on substrate 6. Another electro-plating apparatus 20 has a cathode connector configuration 21 with four comb electrodes 22 each having a main portion 23 with a plurality of teeth 24 each of which has end 25 inclined in the direction of the movement fo the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.